Battery housing for at least one battery cell having a ceramic or glass-like or metallic protective coating, and motor vehicle

Abstract

A housing for at least one battery cell of an electrical energy accumulator of an at least partially electrically operated motor vehicle, having an interior of the battery housing, which is designed for arranging the at least one battery cell, and having at least one protective coating formed on at least one housing wall of the battery housing and facing toward the interior, wherein the protective coating is ceramic or glass-like or metallic and is designed to generate a degassing flow in the event of degassing of the battery cell from the interior of the battery housing. The disclosure furthermore relates to a motor vehicle.

1 . A battery housing comprising:
 at least one battery cell of an electrical energy accumulator of an at least partially electrically operated motor vehicle, having an interior of the battery housing, which is designed for arranging the at least one battery cell, and having at least one protective coating formed on at least one housing wall of the battery housing and facing toward the interior, and   the protective coating is ceramic or glass-like or metallic and is designed to generate a degassing flow in the event of degassing of the battery cell from the interior of the battery housing.   
     
     
         2 . The battery housing as claimed in  claim 1 , wherein the battery housing has a degassing opening, which is designed to discharge the degassing flow from the interior into an environment of the battery housing. 
     
     
         3 . The battery housing as claimed in  claim 2 , wherein the degassing opening has a bursting membrane, which is designed to burst in the event of a predetermined degassing pressure in the interior and to discharge the degassing flow into the environment. 
     
     
         4 . The battery housing as claimed in  claim 1 , wherein the battery housing has an additional degassing element which is designed to be arranged between the battery cell and at least one housing wall in the interior. 
     
     
         5 . The battery housing as claimed in  claim 4 , wherein the degassing element is angled at a first end of the degassing element and/or at a second end of the degassing element opposite to the first end. 
     
     
         6 . The battery housing as claimed in  claim 1 , wherein the at least one coated housing wall is opposite to at least one degassing device of the battery cell. 
     
     
         7 . The battery housing as claimed in  claim 1 , wherein the battery housing is made of aluminum. 
     
     
         8 . The battery housing as claimed in  claim 1 , wherein the protective coating is dimensionally stable during degassing of the battery cell. 
     
     
         9 . The battery housing as claimed in  claim 1 , wherein a cover element of the battery housing and/or a first side element of the battery housing and/or a second side element of the battery housing and/or a base element of the battery housing has the protective coating. 
     
     
         10 . The battery housing as claimed in  claim 2 , wherein the protective coating is dimensionally stable during degassing of the battery cell. 
     
     
         11 . The battery housing as claimed in  claim 3 , wherein the protective coating is dimensionally stable during degassing of the battery cell. 
     
     
         12 . The battery housing as claimed in  claim 4 , wherein the protective coating is dimensionally stable during degassing of the battery cell. 
     
     
         13 . The battery housing as claimed in  claim 5 , wherein the protective coating is dimensionally stable during degassing of the battery cell. 
     
     
         14 . The battery housing as claimed in  claim 6 , wherein the protective coating is dimensionally stable during degassing of the battery cell. 
     
     
         15 . The battery housing as claimed in  claim 7 , wherein the protective coating is dimensionally stable during degassing of the battery cell. 
     
     
         16 . The battery housing as claimed in  claim 2 , wherein a cover element of the battery housing and/or a first side element of the battery housing and/or a second side element of the battery housing and/or a base element of the battery housing has the protective coating. 
     
     
         17 . The battery housing as claimed in  claim 3 , wherein a cover element of the battery housing and/or a first side element of the battery housing and/or a second side element of the battery housing and/or a base element of the battery housing has the protective coating. 
     
     
         18 . The battery housing as claimed in  claim 4 , wherein a cover element of the battery housing and/or a first side element of the battery housing and/or a second side element of the battery housing and/or a base element of the battery housing has the protective coating. 
     
     
         19 . The battery housing as claimed in  claim 5 , wherein a cover element of the battery housing and/or a first side element of the battery housing and/or a second side element of the battery housing and/or a base element of the battery housing has the protective coating. 
     
     
         20 . The battery housing as claimed in  claim 6 , wherein a cover element of the battery housing and/or a first side element of the battery housing and/or a second side element of the battery housing and/or a base element of the battery housing has the protective coating.